1. The bug is a failure to match the graphics hardware that is built into Geode chipset with the corresponding X driver.
a) On desktop hosts, the result is that running X without any xorg.conf or with an xorg.conf that omits the driver name will have X revert to the VESA driver. This produces sub-optimal performance and an unability to use chipset-specific features that are present in the "geode" driver. b) On LTSP hosts, which uses a different method for configuring X, this fails for a completely different reason, because X core follows a different method for producing an xorg.conf using "Xorg -configure" than for configuration-less chipset matching. 2. a) The desktop case is fixed with the enclosed patch, by adding the PCI ID for the Geode LX to hw/xfree86/common/xf86AutoConfig.c. b) Fixing the LTSP case will require further investigation. 3. The patch for the desktop case is attached to this bug. 4. To reproduce this issue, launch X (e.g. using "startx") from console, on a Geode LX -based desktop host without any xorg.conf present. Then, examining the X log, we notice that the VESA driver was used by X. After the patch has been applied, repeating the test produces an X log that correctly shows that X used the "geode" X driver. 5. The patch cannot introduce any regression. Rather, it introduce positive PCI ID matching in a situation where it was not existent. -- X fails to use GEODE and reverts to VESA on a host without any xorg.conf https://bugs.launchpad.net/bugs/220510 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
